Overview: Standalone 1A Linear Lithium Battery Charger With Thermal Regulation CE3211 Series INTRODUCTION:
The CE3211 is a plete constant-current/ constant-voltage linear charger for single cell lithium rechargeable battery. No external sense resistor is needed, and no blocking diode is required due to the internal P-MOSFET architecture. Furthermore, the CE3211 is specifically designed to work within USB power specifications. Its low external ponent count makes the CE3211 ideally suited for portable applications. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge current can be programmed externally With a single resistor. The CE3211 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the CE3211 automatically enters a low power sleep mode, dropping the
battery drain current to less than 2A. The
CE3211 can be put into shutdown mode, reducing
the supply current to 50A.
